Highest salary at Msad #4 Guilford in year 2019 was $97,500. Number of employees at Msad #4 Guilford in year 2019 was 79. Average annual salary was $37,934 and median salary was $38,187. Msad #4 Guilford average salary is 19 percent lower than USA average and median salary is 12 percent lower than USA median salary. From 2018 to 2019, the average salary of employees at this employer increased 10.6 percent, the median salary increased 7.7 percent.